Uva 10106 Product（use java）

import java.io.*;
import java.math.*;
import java.util.*;
import java.text.*;
public class Product{
public static void main(String args[]){
Scanner cin = new Scanner(new BufferedInputStream(System.in));
BigInteger x,y;
while(cin.hasNext()){
x = cin.nextBigInteger();y = cin.nextBigInteger();
System.out.println(x.multiply(y));
}
}
}